Making ice-cream more nutritious with meat left-overs

May 21, 2013 by Elena Ledda
Making ice-cream more nutritious with meat left-overs

Food industries are now turning meat left-over into high-protein content ingredients for food supplements, or to be added to processed food. But a EU-wide regulation covering them is still lacking.

Most of the animal proteins found in the meat industry waste have, until now, been underutilised. The challenge is to transform such waste into food of higher functionality and added value. Thanks to the findings of the EU funded PROSPARE project, it is possible to reuse the protein and lipid fraction of disused food, according to project co-ordinator Arnaldo Dossena, who is the head of the food science department at the University of Parma, in Italy.

Up to 50% of the animal weight processed in the meat industry is discarded as left-overs and ends up composted or incinerated, despite being rich in proteins and lipids. Turning the lipid fraction of such waste into biodiesel has proven too expensive. So the focus is now on reusing proteins. Today, only 22% is converted by the food industry into feed and barely 3% is consumed as food. The problem is that recovery methods are energy intensive. They also convert the source proteins into meals with poorer digestibility and nutrient properties as well as a low commercial value.

Thanks to a process involving enzymes to digest food, poultry left-overs such as bone and meat trimmings can be converted into proteins dubbed functional animal proteins hydrolyzates. They differ from existing protein hydrolyzates, from eggs, buttermilk, or fish already on the market in that they have a higher content of nutritionally useful amino acids. They can be used as supplements for sports diet, to help build up , and as additives in processed food, for example. So far, some of their properties—namely prebiotic, antimicrobiotic, antioxidant and hypotensive—have been demonstrated in vitro.

The technology developed under the project is now being tested by a Belgian food company, called PROLIVER. It is hoping to enhance the nutritional quality of its protein hydrolysates, already sold in dietary, health and sports . One of the project partners, Mobitek-M, which is a Russian company specialised in production of protein-enriched food stuffs, is also planning on including these products into ice-cream, under the follow-up Rosano Project. They have built a plant in the Belgorod region of the Russian Federation, which is about to start of transforming functional animal protein at a capacity of one hundred tonnes per day.

Some see a real advantage in this approach. "I think in Europe the most important part of such an approach is to reduce the impact of the [food] production on the environment," explains Vegard Segtnan, senior researcher at the Norwegian Institute of Food, Fishery and Aquaculture Nofima, located in Tromsø. He also believes that there is also a market for these specialised protein products that are easily assimilated by the body for sick people, the elderly and athletes. "The materials have a one up to two years shelf life," Dossena tells youris.com, "[they] can be used to increase the protein count where there is a protein deficit since they contain many free [which are therefore easily absorbed]."

These products aim to complete the gamut of protein-based products present on the market. However, there is currently no EU-wide specific regulations for them. Instead, they are approved on a case-by-case basis in individual EU countries. Protein hydrolyzates approved in national EU markets need to qualify as a specific food product category, according to Karin Verzijden, a food regulatory expert at law firm Axon lawyers, in Amsterdam, the Netherlands. For example, these products might qualify as dietary supplements. "It really depends on the emphasis that is put on their ability to be digested much quicker than regular proteins for instance," Verzijden tells youris.com.

In addition to qualifying as food dietary supplement, experts disagree as to whether they might either qualify as novel foods used as food ingredients, or as additives. It partly depends on whether they were not already used for human consumption within the EU market prior to 1997, when the EU novel food regulation entered into force. Until further clarity regarding the food category these applications would be considered under by the regulator at EU-wide level, it may be a while before they reach their potential users.

Explore further: Sweet-smelling breath to help diabetes diagnosis in children

add to favorites email to friend print save as pdf

Related Stories

Funky food from fruit by-products

Apr 30, 2013

Researchers have found that reusing the by-products of fruit and cereal processing could help promote the sustainability of the food industry, as long as its overall environmental fingerprint is clearly evaluated.

Insects: A must for a protein-rich diet

May 14, 2013

Arnold van Huis is an expert on tropical insects specialised in pest management and biological control based at Wageningen University. He advocates growing insects as feed for livestock and for human consumption. Here, van ...

Plant food supplements in the spotlight

Feb 02, 2012

Natural food does not always mean safe food. EU-funded researchers have discovered that the compounds found in some botanicals and botanical preparations, such as plant food supplements, may be detrimental ...

Bugs are food of the future, UN says

May 13, 2013

Beetles, caterpillars and wasps could supplement the diets of billions of people globally and help feed livestock, the UN's Food and Agriculture Organisation said on Monday, calling for more investment i ...

Is pet ownership sustainable?

Apr 22, 2013

There has been much talk about sustainability, but little attention has been paid to its nutritional aspects. University of Illinois animal sciences researcher Kelly Swanson, in cooperation with scientists at natural pet ...

Age-proof diet for longevity

Feb 28, 2013

By studying the molecular mechanism of food nutrients from a Mediterranean diet in an elderly population, scientists hope to help countering their physical and mental decline.

Recommended for you

Heat-conducting plastic developed

16 hours ago

The spaghetti-like internal structure of most plastics makes it hard for them to cast away heat, but a University of Michigan research team has made a plastic blend that does so 10 times better than its conventional ...

User comments : 7

Adjust slider to filter visible comments by rank

Display comments: newest first

mvg
3.8 / 5 (10) May 21, 2013
No thank you---Another step toward feeding people dogfood!
EyeNStein
2.7 / 5 (12) May 21, 2013
They don't give a stuff about nutrition. If scrap meat is 1 cent cheaper than the next cheapest food texturing ingredient, they will use it.
Don't think the Muslims will like pork fat in their Ice Cream either, they were outraged when it turned up in chicken a while back.
I'm not too happy with the prospect of rendered cow brains ending up in my ice-cream either. CJD cases will go through the roof.
Moebius
3.2 / 5 (11) May 21, 2013
So now they are trying to repackage pink slime and put it in ice cream. No doubt lobbyists are busy trying to get it called something palatable.
Moebius
2 / 5 (8) May 21, 2013
double post. The simple solution is to buy an ice cream maker for about $50. Half heavy cream, half milk, a little sugar and whatever flavoring you want and you have better ice cream than almost all the store bought.
EyeNStein
2 / 5 (8) May 21, 2013
So now they are trying to repackage pink slime and put it in ice cream. No doubt lobbyists are busy trying to get it called something palatable.

Now with added 'neuronol' and 'muscle protein' makes your kids smarter and stronger as they eat!
Sinister1811
2.5 / 5 (8) May 22, 2013
That's just horrible. Just the thought of this is enough to turn me off ice cream. And these days, they also seem to throw the left overs into meat pies and sausages.
alfie_null
5 / 5 (3) May 22, 2013
Ice cream? Perceived as a healthy food? Really!? Rather, help push Europeans into becoming as fat as Americans.

If this is to be accepted, I hope there are stringent labeling requirements - something like "rendered animal waste", not just some trade name or chemical.

Europeans don't need more protein in their diet. The use cases presented (elderly, infirm, athletes) are unconvincing.

Please sign in to add a comment. Registration is free, and takes less than a minute. Read more

Click here to reset your password.
Sign in to get notified via email when new comments are made.